Irredundant generating sets and dimension-like invariants of the finite group

13 Dec 2017  ·  Nguyen Minh ·

Whiston proved that the maximum size of an irredundant generating set in the symmetric group $S_n$ is $n-1$, and Cameron and Cara characterized all irredundant generating sets of $S_n$ that achieve this size. Our goal is to extend their results... Using properties of transitive subgroups of the symmetric group, we are able to classify all irredundant generating sets with sizes $n-2$ in both $A_n$ and $S_n$. Next, based on this classification, we derive other interesting properties for the alternating group $A_n$. Finally, using Whiston's lemma, we will derive the formulas for calculating dimension-like invariants of some specific types of wreath products. read more

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Group Theory